Unable to Upgrade AK to OS 1.55 [resolved]

cozido · June 12, 2026, 4:56am

Getting “Incompatible OS” error in Transfer, does anyone else have the same issue? Is there a workaround?

AndreN · June 12, 2026, 5:01am

You need to download the correct file from Elektron for your Ak. The one for an A4Mk2 won’t work.

Good luck.

cozido · June 12, 2026, 5:19am

Cool. let me try that! Doh!

mfk · June 12, 2026, 5:20am

cozido · June 12, 2026, 5:26am

Don’t know how I missed the two different versions earlier… It is all good now, thanks!

Download Analog Four MKII OS 1.55 here.
Download Analog Four MKI/Analog Keys OS 1.55 here.